{
 "cells": [
  {
   "cell_type": "markdown",
   "id": "1ba6a151",
   "metadata": {},
   "source": [
    "# 上周内容\n",
    ">1.while循环：while true》》无限循环\n",
    ">>1.指定次数 while true 可以实现for循环的指定次数 增加一个count计数器即可\n",
    ">>2.while true 一般与用户输入一起使用，让用户可以重复输入，直到某些条件成立结束输入（购物车）\n",
    "\n",
    "\n",
    "\n",
    "\n",
    "# 本周内容\n",
    ">1.元组\n",
    "\n",
    ">2.集合\n",
    "\n",
    ">3.字典"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "e39af535",
   "metadata": {},
   "source": [
    "# 1.元组\n",
    "\n",
    ">1.元组的基本内容（形态  定义）\n",
    "\n",
    "\n",
    "\n",
    ">2.元组性质不可变性**</font>\n",
    "\n",
    ">>1.有序性（indexing，sliceing）\n",
    "\n",
    ">>2.<font color=\"red\">**不可变性**</font>,元组没有增删改\n",
    "\n",
    "\n",
    "\n",
    ">3.元组的一般方法"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "74330792",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "(1800001, 1800002, 1800003) <class 'tuple'>\n"
     ]
    }
   ],
   "source": [
    "网二_学号 = (1800001,1800002,1800003)\n",
    "print(网二_学号,type(网二_学号))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "f117c337",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "(1900001, 1900002, 1900003) <class 'tuple'>\n"
     ]
    }
   ],
   "source": [
    "网二_学号 = 1900001,1900002,1900003\n",
    "print(网二_学号,type(网二_学号))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "f065bd85",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "1900001"
      ]
     },
     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网二_学号[0]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "id": "39a3f344",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "(1900002, 1900003)"
      ]
     },
     "execution_count": 4,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网二_学号[1:]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "id": "e71c8801",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "time.struct_time(tm_year=2022, tm_mon=10, tm_mday=25, tm_hour=15, tm_min=7, tm_sec=34, tm_wday=1, tm_yday=298, tm_isdst=0)"
      ]
     },
     "execution_count": 5,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "#元组的实际案例\n",
    "import time\n",
    "time.localtime()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 23,
   "id": "9e8e5056",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Help on struct_time object:\n",
      "\n",
      "class struct_time(builtins.tuple)\n",
      " |  struct_time(iterable=(), /)\n",
      " |  \n",
      " |  The time value as returned by gmtime(), localtime(), and strptime(), and\n",
      " |  accepted by asctime(), mktime() and strftime().  May be considered as a\n",
      " |  sequence of 9 integers.\n",
      " |  \n",
      " |  Note that several fields' values are not the same as those defined by\n",
      " |  the C language standard for struct tm.  For example, the value of the\n",
      " |  field tm_year is the actual year, not year - 1900.  See individual\n",
      " |  fields' descriptions for details.\n",
      " |  \n",
      " |  Method resolution order:\n",
      " |      struct_time\n",
      " |      builtins.tuple\n",
      " |      builtins.object\n",
      " |  \n",
      " |  Methods defined here:\n",
      " |  \n",
      " |  __reduce__(...)\n",
      " |      Helper for pickle.\n",
      " |  \n",
      " |  __repr__(self, /)\n",
      " |      Return repr(self).\n",
      " |  \n",
      " |  ----------------------------------------------------------------------\n",
      " |  Static methods defined here:\n",
      " |  \n",
      " |  __new__(*args, **kwargs) from builtins.type\n",
      " |      Create and return a new object.  See help(type) for accurate signature.\n",
      " |  \n",
      " |  ----------------------------------------------------------------------\n",
      " |  Data descriptors defined here:\n",
      " |  \n",
      " |  tm_gmtoff\n",
      " |      offset from UTC in seconds\n",
      " |  \n",
      " |  tm_hour\n",
      " |      hours, range [0, 23]\n",
      " |  \n",
      " |  tm_isdst\n",
      " |      1 if summer time is in effect, 0 if not, and -1 if unknown\n",
      " |  \n",
      " |  tm_mday\n",
      " |      day of month, range [1, 31]\n",
      " |  \n",
      " |  tm_min\n",
      " |      minutes, range [0, 59]\n",
      " |  \n",
      " |  tm_mon\n",
      " |      month of year, range [1, 12]\n",
      " |  \n",
      " |  tm_sec\n",
      " |      seconds, range [0, 61])\n",
      " |  \n",
      " |  tm_wday\n",
      " |      day of week, range [0, 6], Monday is 0\n",
      " |  \n",
      " |  tm_yday\n",
      " |      day of year, range [1, 366]\n",
      " |  \n",
      " |  tm_year\n",
      " |      year, for example, 1993\n",
      " |  \n",
      " |  tm_zone\n",
      " |      abbreviation of timezone name\n",
      " |  \n",
      " |  ----------------------------------------------------------------------\n",
      " |  Data and other attributes defined here:\n",
      " |  \n",
      " |  n_fields = 11\n",
      " |  \n",
      " |  n_sequence_fields = 9\n",
      " |  \n",
      " |  n_unnamed_fields = 0\n",
      " |  \n",
      " |  ----------------------------------------------------------------------\n",
      " |  Methods inherited from builtins.tuple:\n",
      " |  \n",
      " |  __add__(self, value, /)\n",
      " |      Return self+value.\n",
      " |  \n",
      " |  __contains__(self, key, /)\n",
      " |      Return key in self.\n",
      " |  \n",
      " |  __eq__(self, value, /)\n",
      " |      Return self==value.\n",
      " |  \n",
      " |  __ge__(self, value, /)\n",
      " |      Return self>=value.\n",
      " |  \n",
      " |  __getattribute__(self, name, /)\n",
      " |      Return getattr(self, name).\n",
      " |  \n",
      " |  __getitem__(self, key, /)\n",
      " |      Return self[key].\n",
      " |  \n",
      " |  __getnewargs__(self, /)\n",
      " |  \n",
      " |  __gt__(self, value, /)\n",
      " |      Return self>value.\n",
      " |  \n",
      " |  __hash__(self, /)\n",
      " |      Return hash(self).\n",
      " |  \n",
      " |  __iter__(self, /)\n",
      " |      Implement iter(self).\n",
      " |  \n",
      " |  __le__(self, value, /)\n",
      " |      Return self<=value.\n",
      " |  \n",
      " |  __len__(self, /)\n",
      " |      Return len(self).\n",
      " |  \n",
      " |  __lt__(self, value, /)\n",
      " |      Return self<value.\n",
      " |  \n",
      " |  __mul__(self, value, /)\n",
      " |      Return self*value.\n",
      " |  \n",
      " |  __ne__(self, value, /)\n",
      " |      Return self!=value.\n",
      " |  \n",
      " |  __rmul__(self, value, /)\n",
      " |      Return value*self.\n",
      " |  \n",
      " |  count(self, value, /)\n",
      " |      Return number of occurrences of value.\n",
      " |  \n",
      " |  index(self, value, start=0, stop=9223372036854775807, /)\n",
      " |      Return first index of value.\n",
      " |      \n",
      " |      Raises ValueError if the value is not present.\n",
      " |  \n",
      " |  ----------------------------------------------------------------------\n",
      " |  Class methods inherited from builtins.tuple:\n",
      " |  \n",
      " |  __class_getitem__(...) from builtins.type\n",
      " |      See PEP 585\n",
      "\n"
     ]
    }
   ],
   "source": [
    "help(time.localtime())"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
   "id": "f3644d99",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "([1, 2, 3, 4], [3, 4, 5, 6]) <class 'tuple'>\n",
      "[1, 2, 3, 4] 2697671850624\n"
     ]
    }
   ],
   "source": [
    "tuple_test = ([1,2,3,4],[3,4,5,6])\n",
    "print(tuple_test,type(tuple_test)),id(tuple_test)\n",
    "print(tuple_test[0],id(tuple_test[0]))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "id": "b45552ca",
   "metadata": {},
   "outputs": [],
   "source": [
    "tuple_test[0].append(100)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "id": "3a4d931a",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "([1, 2, 3, 4], [3, 4, 5, 6]) <class 'tuple'>\n",
      "[1, 2, 3, 4] 2697671850624\n"
     ]
    }
   ],
   "source": [
    "print(tuple_test,type(tuple_test)),id(tuple_test)\n",
    "print(tuple_test[0],id(tuple_test[0]))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "id": "f2f59a0a",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "([1, 2, 3, 4, 100], [3, 4, 5, 6]) <class 'tuple'>\n"
     ]
    },
    {
     "data": {
      "text/plain": [
       "(None, 2697671044736)"
      ]
     },
     "execution_count": 9,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "print(tuple_test,type(tuple_test)),id(tuple_test)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "id": "8cf0d73e",
   "metadata": {},
   "outputs": [],
   "source": [
    "#一般情况下，元组里面存放的是 常量（不可变），何为常量：数字 字符串\n",
    "#不存放变量（列表 字典）"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "76c33da3",
   "metadata": {},
   "source": [
    "# 2.集合(sets)\n",
    ">1.集合的基本概念\n",
    ">>1.性质：没有重复\n",
    ">>2.性质：无序性\n",
    "\n",
    ">2.集合的一般方法\n",
    ">>1.集合的运算：&\n",
    ">>2.集合的一般方法：intersection，"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 15,
   "id": "3fd68eb0",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{'apple', 'banana', 'orange', 'pear'}\n",
      "{'apple', 'banana', 'orange', 'pear'}\n"
     ]
    }
   ],
   "source": [
    "basket_lists = ['apple','orange','apple','pear','orange','banana']\n",
    "basket_sets = {'apple','orange','apple','pear','orange','banana'}\n",
    "print(basket_sets)\n",
    "print(basket_sets)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "id": "3dd7f9d4",
   "metadata": {},
   "outputs": [],
   "source": [
    "舞蹈社 = {1801,1802,1803,1809,1811}\n",
    "歌唱社 = {1808,1809,1811,1911,1020}"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 17,
   "id": "21a1c9c8",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{1809, 1811}"
      ]
     },
     "execution_count": 17,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "舞蹈社 & 歌唱社"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 18,
   "id": "356251c9",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{1020, 1801, 1802, 1803, 1808, 1809, 1811, 1911}"
      ]
     },
     "execution_count": 18,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "舞蹈社 | 歌唱社"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 20,
   "id": "a38c443f",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{1809, 1811}"
      ]
     },
     "execution_count": 20,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "舞蹈社.intersection(歌唱社)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 21,
   "id": "d4f09ec9",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "8"
      ]
     },
     "execution_count": 21,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "len(舞蹈社 | 歌唱社)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 22,
   "id": "a2abadfa",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{1020, 1801, 1802, 1803, 1808, 1809, 1811, 1911}"
      ]
     },
     "execution_count": 22,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "舞蹈社.union(歌唱社)"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "fd14558f",
   "metadata": {},
   "source": [
    "# 3.字典（dict）\n",
    ">1.字典的基本概念\n",
    ">>1.字典性质：\n",
    ">>>1.无序性\n",
    ">>>2.keys是不可变的,就像列表、字符串登有序的数据结构的index不可变一样的\n",
    ">>>3.keys是唯一的\n",
    ">>2.字典的形态\n",
    ">1.字典的一般方法\n",
    ">>1."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 27,
   "id": "64b7f51f",
   "metadata": {},
   "outputs": [],
   "source": [
    "网新二班 = {\n",
    "    1800001:\"chouerti\",\n",
    "    1800002:\"maoerti\",\n",
    "    1800003:\"xiaopi\",\n",
    "    1800004:\"xiaoxiang\"\n",
    "}"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 28,
   "id": "4f69a2f4",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{1800001: 'chouerti', 1800002: 'maoerti', 1800003: 'xiaopi', 1800004: 'xiaoxiang'} <class 'dict'>\n"
     ]
    }
   ],
   "source": [
    "print(网新二班,type(网新二班))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 29,
   "id": "c6e11dce",
   "metadata": {},
   "outputs": [],
   "source": [
    "#因为学号是唯一的 可以做字典的key"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 32,
   "id": "8849c5eb",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{1800001: 'chouerti', 1800002: 'maoerti', 1800003: 'xiaopi', 1800004: 'xiaoxiang', 1800005: 'xiaopi'} <class 'dict'>\n"
     ]
    }
   ],
   "source": [
    "网新一班 = {\n",
    "    1800001:\"chouerti\",\n",
    "    1800002:\"maoerti\",\n",
    "    1800003:\"xiaopi\",\n",
    "    1800004:\"xiaoxiang\",\n",
    "    1800005:\"xiaopi\"\n",
    "}\n",
    "print(网新一班,type(网新一班))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 33,
   "id": "54a0c16a",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'xiaoxiang'"
      ]
     },
     "execution_count": 33,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "#字典的取值 通过keys 进行字典的取值 ,unlike列表、元组和字符串通过index取值\n",
    "网新一班[1800004]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 34,
   "id": "38d0892a",
   "metadata": {},
   "outputs": [],
   "source": [
    "网新一班 = {\n",
    "    1800001:[\"chouerti\",\"广州\",\"男\",\"19\",\"聊天记录\"],\n",
    "    1800002:\"maoerti\",\n",
    "    1800003:\"xiaopi\",\n",
    "    1800004:\"xiaoxiang\",\n",
    "    1800005:\"xiaopi\"\n",
    "}"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 35,
   "id": "a433e43b",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['chouerti', '广州', '男', '19', '聊天记录']"
      ]
     },
     "execution_count": 35,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网新一班[1800001]"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "81b623d7",
   "metadata": {},
   "source": [
    "# 3.2字典的一般方法\n",
    "* 1.按照字典的形式直接创建（key：value）\n",
    "* 2.使用dict()方法创建字典"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 36,
   "id": "b8d779e4",
   "metadata": {},
   "outputs": [],
   "source": [
    "#使用dict方法创建字典\n",
    "网新四班 = dict(\n",
    "    stu1800001=\"chouerti\",\n",
    "    stu1800002=\"maoerti\",\n",
    "    stu1800003=\"xiaopi\",\n",
    "    stu1800004=\"xiaoxiang\",\n",
    ")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 37,
   "id": "4b8532a7",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'stu1800001': 'chouerti',\n",
       " 'stu1800002': 'maoerti',\n",
       " 'stu1800003': 'xiaopi',\n",
       " 'stu1800004': 'xiaoxiang'}"
      ]
     },
     "execution_count": 37,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网新四班"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 38,
   "id": "91e32937",
   "metadata": {},
   "outputs": [],
   "source": [
    "#使用字典增加的方式创建字典：dict[key] = value\n",
    "网新一班_keys = [\"stu1800001\",\"stu1800002\",\"stu1800003\",\"stu1800004\"]\n",
    "网新一班 = {}\n",
    "网新一班[\"stu1800001\"]='chouerti'\n",
    "网新一班[\"stu1800002\"]='maoerti'\n",
    "网新一班[\"stu1800003\"]=\"xiaopi\"\n",
    "网新一班[\"stu1800004\"]=\"xiaoxiang\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 39,
   "id": "a8215d6d",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'stu1800001': 'chouerti',\n",
       " 'stu1800002': 'maoerti',\n",
       " 'stu1800003': 'xiaopi',\n",
       " 'stu1800004': 'xiaoxiang'}"
      ]
     },
     "execution_count": 39,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网新一班"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 40,
   "id": "e2f7078a",
   "metadata": {},
   "outputs": [],
   "source": [
    "网新一班_keys = [\"stu1800001\",\"stu1800002\",\"stu1800003\",\"stu1800004\"]\n",
    "网新一班_values = [\"chouerti\",\"maoerti\",\"xiaopi\",\"xiaoxiang\"]\n",
    "网新一班 = {}\n",
    "for i in range(4):\n",
    "    网新一班[网新一班_keys[i]] = 网新一班_values[i]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 41,
   "id": "49d1f5bb",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'stu1800001': 'chouerti',\n",
       " 'stu1800002': 'maoerti',\n",
       " 'stu1800003': 'xiaopi',\n",
       " 'stu1800004': 'xiaoxiang'}"
      ]
     },
     "execution_count": 41,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网新一班"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "1ce1c4c5",
   "metadata": {},
   "source": [
    "# 课后作业：\n",
    "字典的课堂笔记练习\n",
    "字典的方法预习"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "f09a5f46",
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
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